Portal 2 achievements
961
(510)

Portal 2

4.7 from 266 votes

There are a maximum of 51 Portal 2 achievements worth 961

6,812 tracked gamers have this game, 360 have completed it (5.28%)

Achievement Details

You Saved Science in Portal 2

You Saved Science18

Complete all test chambers in all courses of co-op

  • Unlocked by 2,143 tracked gamers (31% - TSA Ratio = 1.78) 6,812  
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